Mason took 9.4 minutes to complete the first challenge in the champs challenge he completed the second challenge 2.65 minutes faster than the first challenge how long did it take mason to complete the second challenge

Hi! For this problem, all you have to do is take away 2.65 from 9.4 for your answer.

9.4 - 2.65 = 6.75

It took Mason 6.75 minutes to complete the second challenge.

I hope this helps!

-Mikayla

m∠a is 90°

m∠b is 40°

< xcy ≅ < xby

step-by-step explanation:

in δcax and δbax,

so, δcax ≅ δbax (side-angle-side or sas)

since δcax ≅ δbax, we can conclude < acx ≅ < abx

in δacy and δaby,

so, δacy ≅ δaby (side-angle-side or sas)

since δacy ≅ δaby, we can conclude < acy ≅ < aby

now,

< acy ≅ < aby

=> < acx + < xcy ≅ < abx + < xby

=> < acx + < xcy ≅ < acx + < xby   (since < acx ≅ < abx already proved above)

subtracting < acx from both sides, we get

< acx + < xcy -< acx ≅ < acx + < xby -< acx

cancelling out < acx and -< acx from both sides, we get

< xcy ≅ < xby (proved)